The zap in a freshly dried sock contains an enormous number of photons, but there are more delicate experiments where single photons are evident.
The zap in a freshly dried sock contains an enormous number of photons, but there are more delicate experiments where single photons are evident.
刚晾干的袜子上就包含了大量的光子，但如果要检测单个的光子，就需要更精细的实验了。